Double back press to exit the application best method (android) in fragment

 private var backPressedTime : Long = 0



if (backPressedTime + 2000 > System.currentTimeMillis()) {
    requireActivity().finishAffinity()
} else {
    showToast(MyApplication.context!!, "Press Back again to exit ", IndiaHaatConstants.ToastType.CUSTOM)
}
backPressedTime = System.currentTimeMillis()

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